PLEITROTOMA. Panama Rhdh. 145 



Pleurotoma cornuta Sowb. in Proc. Zool. Soc. Lond. 



p. 136. Dec. 1833. 



Mull. Synop. Nov. Test. Viv. p. 112. May 1836. 



nigerrima Miill. Synop. Nov. Test. Viv. p. 113. May 1836. 



Reeve Conch. Icon. pi. 12. f. 102. May 1843. 



Station. Sandy mud in 6 and 10 fathoms ; Cuming ! Sow- 

 erby : also Eeeve. 

 Habitat. Panama ; Gaming ! Sowerby : also Miiller. 



Bay of Caraccas ; Cuming ! Sowerby : also Miil- 

 ler. (var. cornuta.) 



Panama and Bay of Caraccas ; Cuming ! Eeeve. 

 Panama ; C. B. A. ! 

 We were indebted to the hermit crabs for 3 specimens. 



177. Pleurotoma obeliscus. 



Synonymy. 



Pleurotoma obeliscus Reeve in Proc. Zool. Soc. Lond. p. 110. Oct. 1845. 

 Reeve Conch. Icon. pi. 20. f. 175. Oct. 1845. 



Station. Unknown. 



Habitat. Unknown ; Reeve. 

 Panama ; C. B. A. ! 

 1 specimen was found. 



178. Pleurotoma olivacea. 



Synonymy. 



Pleurotoma olivacea Sowb. in Proc. Zool. Soc. Lond. p. 126. Dec. 1833. 



Mull. Synop. Nov. Test. Viv. p. 111. May 1836. 



Reeve Conch. Icon. pi. 4. f. 27. Feb. 1843. 



Station. In sandy mud at 5 to 12 fathoms; Cuming! 

 Sowerby. From mud in 4 to 7 fathoms depth; Hinds! 

 Reeve. 



Habitat. Salango and St. Elena ; Cuming ! Sowerby : also 

 Reeve : also Miiller. 



